/Engine/Source/Editor/AdvancedPreviewScene/Public/AdvancedPreviewScene.h
const bool HandleViewportInput ( [FViewport](API\Runtime\Engine\FViewport) * InViewport, [FInputDeviceId](API\Runtime\Core\Misc\FInputDeviceId) DeviceId, [FKey](API\Runtime\InputCore\FKey) Key, float Delta, float DeltaTime, int32 NumSamples, bool bGamepad )